which bus to travel from Hong Kong Airport to Kande International Hotel Haide Square Hongfu Dongguan

Well, there is no direct bus that can take you to the destination.
However, you can take long-distance bus at the airport, and get off at Exhibition International Hotel first. The schedules are from 07:10 to 19:50. And the ticket fare is 160 HKD per person.
Then walk southwest along East Yuanmei Road around 920 yards. After that, you will find your hotel easily.